Kankakee, IL Weather & Climate Normals
Kankakee's real weather, in one number
Kankakee, IL scores 46/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Kankakee's hottest and coldest months
Kankakee's hottest month is Jul, averaging 75°F; its coldest is Jan, averaging 24°F, a 50.4°F swing across the year, one of the widest gaps in this dataset.
Rain and snow in Kankakee
Kankakee averages 41.66in of precipitation a year across roughly 113 days with measurable rain or snow, and 20.7in of snow a year.
Where Kankakee ranks
Kankakee ranks 2980 of 4876 US cities in this dataset for comfort score, and 98 of 330 within IL. About 23,535 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from KANKAKEE METRO WASTEWATER, IL US, 2.6 miles from Kankakee, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure